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SanDisk Guru
Posts: 16,258
Registered: ‎04-17-2008
Re: FORMAT 64GB MICRO SDXC PROBLEM

There is no lock switch on the micro-sized SD cards as there is on the full-size ones.

 

If it is still showing as write-protected, it is most likely defective and should be exhanged/eplaced under warranty by SanDisk.

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